Gaming Notebooks

I bought this laptop on 18 February, since then I installed windows on it 3 times (except the first installation) because I had one of the two problems I'll talk about here.

1. My laptop is freezing in following cases : 

1.1. Whatever i do, it freezes for 2 seconds between 10s interval, in games this problem never shown up.

1.2. When I'm watching a video in browser (YouTube, Netflix, Facebook etc) whenever I do move my cursor after 2 seconds since I didn`t. This is totally random, sometimes I encounter this problem while sometimes don't.

2. Games freeze, and no, is not about FPS, is horrbile what is happening, the games flow like I am watching photos in gallery, while FPS counter shows 60 (cause I use VSyinc in every game) and hard disk is not in full load, i thought it is because of HDD, but the led is blinking so it ain`t in full load. I installed the game on SSD after, just to be sure, but same result. After I reinstall windows, this problem is solved but the first problem comes in every time after a new Windows installation. This happened like this : today i play without any problems at all, turn off pc, woke up in the morning, started the game, but it was freezing like horror.

Another problem is that, my connection speed is 500 MBps (That means around 60 MB/s if I remember well), when I download on the SSD my laptop came with, download speed is around 50-55 MB/s, but when I download on hard disk (Steam/Ubisoft games mostly) the download doesn`t pass 10 MB/s, it usually stuck at 6-8 MB/s, and the hard disk usage 6-8MB/s aswell but 100% in Task Manager. If I copy files from disk, writting speed is 175 MB/s for hard disk

I wrote a topic about first issue like 1 month ago, but none of the recived answeres were helping me, hope this time i could get some help, cause to be honest, i am unsatisfied about this laptop. The only programs I installed was 3 games, Eclipse and Visual Studio. The problem with freezing games appered when I installed Microsoft Visual Redistributable x64/x86 2015-2019 package, but the other 2 times i had to reinstall windows, it happened when I first installed the game and nothing else... Thank you in advance.